A very small but cute girl, most of the time has a very nice bum and large tits. Alleys tend to only be good at one sport, soccer. They complain a lot and think that the whole world is against them, when this definitely is not the case. They also have trouble with guys, many guys like them but they can never pick the right one. Also, in school they suck up to teachers as much as possible even though they think teachers hate them also.
Dude, that girl was fit like an Alley Vlogiannitis" or "Man, that girl needs to stop being an Alley Vlogiannitis and stop sucking up to the teacher"